diff core/modules/views/src/EntityViewsData.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/views/src/EntityViewsData.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,642 @@
+<?php
+
+namespace Drupal\views;
+
+use Drupal\Core\Entity\ContentEntityType;
+use Drupal\Core\Entity\EntityHandlerInterface;
+use Drupal\Core\Entity\EntityManagerInterface;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Entity\Sql\SqlEntityStorageInterface;
+use Drupal\Core\Entity\Sql\TableMappingInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\StringTranslation\TranslationInterface;
+use Symfony\Component\DependencyInjection\Container;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides generic views integration for entities.
+ */
+class EntityViewsData implements EntityHandlerInterface, EntityViewsDataInterface {
+
+  use StringTranslationTrait;
+
+  /**
+   * Entity type for this views data handler instance.
+   *
+   * @var \Drupal\Core\Entity\EntityTypeInterface
+   */
+  protected $entityType;
+
+  /**
+   * The storage used for this entity type.
+   *
+   * @var \Drupal\Core\Entity\Sql\SqlEntityStorageInterface
+   */
+  protected $storage;
+
+  /**
+   * The module handler.
+   *
+   * @var \Drupal\Core\Extension\ModuleHandlerInterface
+   */
+  protected $moduleHandler;
+
+  /**
+   * The translation manager.
+   *
+   * @var \Drupal\Core\StringTranslation\TranslationInterface
+   */
+  protected $translationManager;
+
+  /**
+   * The field storage definitions for all base fields of the entity type.
+   *
+   * @var \Drupal\Core\Field\FieldStorageDefinitionInterface[]
+   */
+  protected $fieldStorageDefinitions;
+
+  /**
+   * The entity manager.
+   *
+   * @var \Drupal\Core\Entity\EntityManagerInterface
+   */
+  protected $entityManager;
+
+  /**
+   * Constructs an EntityViewsData object.
+   *
+   * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
+   *   The entity type to provide views integration for.
+   * @param \Drupal\Core\Entity\Sql\SqlEntityStorageInterface $storage_controller
+   *   The storage handler used for this entity type.
+   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
+   *   The entity manager.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler.
+   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation_manager
+   *   The translation manager.
+   */
+  public function __construct(EntityTypeInterface $entity_type, SqlEntityStorageInterface $storage_controller, EntityManagerInterface $entity_manager, ModuleHandlerInterface $module_handler, TranslationInterface $translation_manager) {
+    $this->entityType = $entity_type;
+    $this->entityManager = $entity_manager;
+    $this->storage = $storage_controller;
+    $this->moduleHandler = $module_handler;
+    $this->setStringTranslation($translation_manager);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
+    return new static(
+      $entity_type,
+      $container->get('entity.manager')->getStorage($entity_type->id()),
+      $container->get('entity.manager'),
+      $container->get('module_handler'),
+      $container->get('string_translation'),
+      $container->get('typed_data_manager')
+    );
+  }
+
+  /**
+   * Gets the field storage definitions.
+   *
+   * @return \Drupal\Core\Field\FieldStorageDefinitionInterface[]
+   */
+  protected function getFieldStorageDefinitions() {
+    if (!isset($this->fieldStorageDefinitions)) {
+      $this->fieldStorageDefinitions = $this->entityManager->getFieldStorageDefinitions($this->entityType->id());
+    }
+    return $this->fieldStorageDefinitions;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getViewsData() {
+    $data = [];
+
+    $base_table = $this->entityType->getBaseTable() ?: $this->entityType->id();
+    $views_revision_base_table = NULL;
+    $revisionable = $this->entityType->isRevisionable();
+    $base_field = $this->entityType->getKey('id');
+
+    $revision_table = '';
+    if ($revisionable) {
+      $revision_table = $this->entityType->getRevisionTable() ?: $this->entityType->id() . '_revision';
+    }
+
+    $translatable = $this->entityType->isTranslatable();
+    $data_table = '';
+    if ($translatable) {
+      $data_table = $this->entityType->getDataTable() ?: $this->entityType->id() . '_field_data';
+    }
+
+    // Some entity types do not have a revision data table defined, but still
+    // have a revision table name set in
+    // \Drupal\Core\Entity\Sql\SqlContentEntityStorage::initTableLayout() so we
+    // apply the same kind of logic.
+    $revision_data_table = '';
+    if ($revisionable && $translatable) {
+      $revision_data_table = $this->entityType->getRevisionDataTable() ?: $this->entityType->id() . '_field_revision';
+    }
+    $revision_field = $this->entityType->getKey('revision');
+
+    // Setup base information of the views data.
+    $data[$base_table]['table']['group'] = $this->entityType->getLabel();
+    $data[$base_table]['table']['provider'] = $this->entityType->getProvider();
+
+    $views_base_table = $base_table;
+    if ($data_table) {
+      $views_base_table = $data_table;
+    }
+    $data[$views_base_table]['table']['base'] = [
+      'field' => $base_field,
+      'title' => $this->entityType->getLabel(),
+      'cache_contexts' => $this->entityType->getListCacheContexts(),
+    ];
+    $data[$base_table]['table']['entity revision'] = FALSE;
+
+    if ($label_key = $this->entityType->getKey('label')) {
+      if ($data_table) {
+        $data[$views_base_table]['table']['base']['defaults'] = [
+          'field' => $label_key,
+          'table' => $data_table,
+        ];
+      }
+      else {
+        $data[$views_base_table]['table']['base']['defaults'] = [
+          'field' => $label_key,
+        ];
+      }
+    }
+
+    // Entity types must implement a list_builder in order to use Views'
+    // entity operations field.
+    if ($this->entityType->hasListBuilderClass()) {
+      $data[$base_table]['operations'] = [
+        'field' => [
+          'title' => $this->t('Operations links'),
+          'help' => $this->t('Provides links to perform entity operations.'),
+          'id' => 'entity_operations',
+        ],
+      ];
+    }
+
+    if ($this->entityType->hasViewBuilderClass()) {
+      $data[$base_table]['rendered_entity'] = [
+        'field' => [
+          'title' => $this->t('Rendered entity'),
+          'help' => $this->t('Renders an entity in a view mode.'),
+          'id' => 'rendered_entity',
+        ],
+      ];
+    }
+
+    // Setup relations to the revisions/property data.
+    if ($data_table) {
+      $data[$base_table]['table']['join'][$data_table] = [
+        'left_field' => $base_field,
+        'field' => $base_field,
+        'type' => 'INNER'
+      ];
+      $data[$data_table]['table']['group'] = $this->entityType->getLabel();
+      $data[$data_table]['table']['provider'] = $this->entityType->getProvider();
+      $data[$data_table]['table']['entity revision'] = FALSE;
+    }
+    if ($revision_table) {
+      $data[$revision_table]['table']['group'] = $this->t('@entity_type revision', ['@entity_type' => $this->entityType->getLabel()]);
+      $data[$revision_table]['table']['provider'] = $this->entityType->getProvider();
+
+      $views_revision_base_table = $revision_table;
+      if ($revision_data_table) {
+        $views_revision_base_table = $revision_data_table;
+      }
+      $data[$views_revision_base_table]['table']['entity revision'] = TRUE;
+      $data[$views_revision_base_table]['table']['base'] = [
+        'field' => $revision_field,
+        'title' => $this->t('@entity_type revisions', ['@entity_type' => $this->entityType->getLabel()]),
+      ];
+      // Join the revision table to the base table.
+      $data[$views_revision_base_table]['table']['join'][$views_base_table] = [
+        'left_field' => $revision_field,
+        'field' => $revision_field,
+        'type' => 'INNER',
+      ];
+
+      if ($revision_data_table) {
+        $data[$revision_data_table]['table']['group'] = $this->t('@entity_type revision', ['@entity_type' => $this->entityType->getLabel()]);
+        $data[$revision_data_table]['table']['entity revision'] = TRUE;
+
+        $data[$revision_table]['table']['join'][$revision_data_table] = [
+          'left_field' => $revision_field,
+          'field' => $revision_field,
+          'type' => 'INNER',
+        ];
+      }
+
+      // Add a filter for showing only the latest revisions of an entity.
+      $data[$revision_table]['latest_revision'] = [
+        'title' => $this->t('Is Latest Revision'),
+        'help' => $this->t('Restrict the view to only revisions that are the latest revision of their entity.'),
+        'filter' => ['id' => 'latest_revision'],
+      ];
+    }
+
+    $this->addEntityLinks($data[$base_table]);
+
+    // Load all typed data definitions of all fields. This should cover each of
+    // the entity base, revision, data tables.
+    $field_definitions = $this->entityManager->getBaseFieldDefinitions($this->entityType->id());
+    /** @var \Drupal\Core\Entity\Sql\DefaultTableMapping $table_mapping */
+    if ($table_mapping = $this->storage->getTableMapping($field_definitions)) {
+      // Fetch all fields that can appear in both the base table and the data
+      // table.
+      $entity_keys = $this->entityType->getKeys();
+      $duplicate_fields = array_intersect_key($entity_keys, array_flip(['id', 'revision', 'bundle']));
+      // Iterate over each table we have so far and collect field data for each.
+      // Based on whether the field is in the field_definitions provided by the
+      // entity manager.
+      // @todo We should better just rely on information coming from the entity
+      //   storage.
+      // @todo https://www.drupal.org/node/2337511
+      foreach ($table_mapping->getTableNames() as $table) {
+        foreach ($table_mapping->getFieldNames($table) as $field_name) {
+          // To avoid confusing duplication in the user interface, for fields
+          // that are on both base and data tables, only add them on the data
+          // table (same for revision vs. revision data).
+          if ($data_table && ($table === $base_table || $table === $revision_table) && in_array($field_name, $duplicate_fields)) {
+            continue;
+          }
+          $this->mapFieldDefinition($table, $field_name, $field_definitions[$field_name], $table_mapping, $data[$table]);
+        }
+      }
+
+      foreach ($field_definitions as $field_definition) {
+        if ($table_mapping->requiresDedicatedTableStorage($field_definition->getFieldStorageDefinition())) {
+          $table = $table_mapping->getDedicatedDataTableName($field_definition->getFieldStorageDefinition());
+
+          $data[$table]['table']['group'] = $this->entityType->getLabel();
+          $data[$table]['table']['provider'] = $this->entityType->getProvider();
+          $data[$table]['table']['join'][$views_base_table] = [
+            'left_field' => $base_field,
+            'field' => 'entity_id',
+            'extra' => [
+              ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+            ],
+          ];
+
+          if ($revisionable) {
+            $revision_table = $table_mapping->getDedicatedRevisionTableName($field_definition->getFieldStorageDefinition());
+
+            $data[$revision_table]['table']['group'] = $this->t('@entity_type revision', ['@entity_type' => $this->entityType->getLabel()]);
+            $data[$revision_table]['table']['provider'] = $this->entityType->getProvider();
+            $data[$revision_table]['table']['join'][$views_revision_base_table] = [
+              'left_field' => $revision_field,
+              'field' => 'entity_id',
+              'extra' => [
+                ['field' => 'deleted', 'value' => 0, 'numeric' => TRUE],
+              ],
+            ];
+          }
+        }
+      }
+    }
+
+    // Add the entity type key to each table generated.
+    $entity_type_id = $this->entityType->id();
+    array_walk($data, function (&$table_data) use ($entity_type_id) {
+      $table_data['table']['entity type'] = $entity_type_id;
+    });
+
+    return $data;
+  }
+
+  /**
+   * Sets the entity links in case corresponding link templates exist.
+   *
+   * @param array $data
+   *   The views data of the base table.
+   */
+  protected function addEntityLinks(array &$data) {
+    $entity_type_id = $this->entityType->id();
+    $t_arguments = ['@entity_type_label' => $this->entityType->getLabel()];
+    if ($this->entityType->hasLinkTemplate('canonical')) {
+      $data['view_' . $entity_type_id] = [
+        'field' => [
+          'title' => $this->t('Link to @entity_type_label', $t_arguments),
+          'help' => $this->t('Provide a view link to the @entity_type_label.', $t_arguments),
+          'id' => 'entity_link',
+        ],
+      ];
+    }
+    if ($this->entityType->hasLinkTemplate('edit-form')) {
+      $data['edit_' . $entity_type_id] = [
+        'field' => [
+          'title' => $this->t('Link to edit @entity_type_label', $t_arguments),
+          'help' => $this->t('Provide an edit link to the @entity_type_label.', $t_arguments),
+          'id' => 'entity_link_edit',
+        ],
+      ];
+    }
+    if ($this->entityType->hasLinkTemplate('delete-form')) {
+      $data['delete_' . $entity_type_id] = [
+        'field' => [
+          'title' => $this->t('Link to delete @entity_type_label', $t_arguments),
+          'help' => $this->t('Provide a delete link to the @entity_type_label.', $t_arguments),
+          'id' => 'entity_link_delete',
+        ],
+      ];
+    }
+  }
+
+  /**
+   * Puts the views data for a single field onto the views data.
+   *
+   * @param string $table
+   *   The table of the field to handle.
+   * @param string $field_name
+   *   The name of the field to handle.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition defined in Entity::baseFieldDefinitions()
+   * @param \Drupal\Core\Entity\Sql\TableMappingInterface $table_mapping
+   *   The table mapping information
+   * @param array $table_data
+   *   A reference to a specific entity table (for example data_table) inside
+   *   the views data.
+   */
+  protected function mapFieldDefinition($table, $field_name, FieldDefinitionInterface $field_definition, TableMappingInterface $table_mapping, &$table_data) {
+    // Create a dummy instance to retrieve property definitions.
+    $field_column_mapping = $table_mapping->getColumnNames($field_name);
+    $field_schema = $this->getFieldStorageDefinitions()[$field_name]->getSchema();
+
+    $field_definition_type = $field_definition->getType();
+    // Add all properties to views table data. We need an entry for each
+    // column of each field, with the first one given special treatment.
+    // @todo Introduce concept of the "main" column for a field, rather than
+    //   assuming the first one is the main column. See also what the
+    //   mapSingleFieldViewsData() method does with $first.
+    $multiple = (count($field_column_mapping) > 1);
+    $first = TRUE;
+    foreach ($field_column_mapping as $field_column_name => $schema_field_name) {
+      $views_field_name = ($multiple) ? $field_name . '__' . $field_column_name : $field_name;
+      $table_data[$views_field_name] = $this->mapSingleFieldViewsData($table, $field_name, $field_definition_type, $field_column_name, $field_schema['columns'][$field_column_name]['type'], $first, $field_definition);
+
+      $table_data[$views_field_name]['entity field'] = $field_name;
+      $first = FALSE;
+    }
+  }
+
+  /**
+   * Provides the views data for a given data type and schema field.
+   *
+   * @param string $table
+   *   The table of the field to handle.
+   * @param string $field_name
+   *   The machine name of the field being processed.
+   * @param string $field_type
+   *   The type of field being handled.
+   * @param string $column_name
+   *   For fields containing multiple columns, the column name being processed.
+   * @param string $column_type
+   *   Within the field, the column type being handled.
+   * @param bool $first
+   *   TRUE if this is the first column within the field.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition.
+   *
+   * @return array
+   *   The modified views data field definition.
+   */
+  protected function mapSingleFieldViewsData($table, $field_name, $field_type, $column_name, $column_type, $first, FieldDefinitionInterface $field_definition) {
+    $views_field = [];
+
+    // Provide a nicer, less verbose label for the first column within a field.
+    // @todo Introduce concept of the "main" column for a field, rather than
+    //   assuming the first one is the main column.
+    if ($first) {
+      $views_field['title'] = $field_definition->getLabel();
+    }
+    else {
+      $views_field['title'] = $field_definition->getLabel() . " ($column_name)";
+    }
+
+    if ($description = $field_definition->getDescription()) {
+      $views_field['help'] = $description;
+    }
+
+    // Set up the field, sort, argument, and filters, based on
+    // the column and/or field data type.
+    // @todo Allow field types to customize this.
+    // @see https://www.drupal.org/node/2337515
+    switch ($field_type) {
+      // Special case a few field types.
+      case 'timestamp':
+      case 'created':
+      case 'changed':
+        $views_field['field']['id'] = 'field';
+        $views_field['argument']['id'] = 'date';
+        $views_field['filter']['id'] = 'date';
+        $views_field['sort']['id'] = 'date';
+        break;
+
+      case 'language':
+        $views_field['field']['id'] = 'field';
+        $views_field['argument']['id'] = 'language';
+        $views_field['filter']['id'] = 'language';
+        $views_field['sort']['id'] = 'standard';
+        break;
+
+      case 'boolean':
+        $views_field['field']['id'] = 'field';
+        $views_field['argument']['id'] = 'numeric';
+        $views_field['filter']['id'] = 'boolean';
+        $views_field['sort']['id'] = 'standard';
+        break;
+
+      case 'uri':
+        // Let's render URIs as URIs by default, not links.
+        $views_field['field']['id'] = 'field';
+        $views_field['field']['default_formatter'] = 'string';
+
+        $views_field['argument']['id'] = 'string';
+        $views_field['filter']['id'] = 'string';
+        $views_field['sort']['id'] = 'standard';
+        break;
+
+      case 'text':
+      case 'text_with_summary':
+        // Treat these three long text fields the same.
+        $field_type = 'text_long';
+        // Intentional fall-through here to the default processing!
+
+      default:
+        // For most fields, the field type is generic enough to just use
+        // the column type to determine the filters etc.
+        switch ($column_type) {
+
+          case 'int':
+          case 'integer':
+          case 'smallint':
+          case 'tinyint':
+          case 'mediumint':
+          case 'float':
+          case 'double':
+          case 'decimal':
+            $views_field['field']['id'] = 'field';
+            $views_field['argument']['id'] = 'numeric';
+            $views_field['filter']['id'] = 'numeric';
+            $views_field['sort']['id'] = 'standard';
+            break;
+
+          case 'char':
+          case 'string':
+          case 'varchar':
+          case 'varchar_ascii':
+          case 'tinytext':
+          case 'text':
+          case 'mediumtext':
+          case 'longtext':
+            $views_field['field']['id'] = 'field';
+            $views_field['argument']['id'] = 'string';
+            $views_field['filter']['id'] = 'string';
+            $views_field['sort']['id'] = 'standard';
+            break;
+
+          default:
+            $views_field['field']['id'] = 'field';
+            $views_field['argument']['id'] = 'standard';
+            $views_field['filter']['id'] = 'standard';
+            $views_field['sort']['id'] = 'standard';
+        }
+    }
+
+    // Do post-processing for a few field types.
+
+    $process_method = 'processViewsDataFor' . Container::camelize($field_type);
+    if (method_exists($this, $process_method)) {
+      $this->{$process_method}($table, $field_definition, $views_field, $column_name);
+    }
+
+    return $views_field;
+  }
+
+  /**
+   * Processes the views data for a language field.
+   *
+   * @param string $table
+   *   The table the language field is added to.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition.
+   * @param array $views_field
+   *   The views field data.
+   * @param string $field_column_name
+   *   The field column being processed.
+   */
+  protected function processViewsDataForLanguage($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
+    // Apply special titles for the langcode field.
+    if ($field_definition->getName() == $this->entityType->getKey('langcode')) {
+      if ($table == $this->entityType->getDataTable() || $table == $this->entityType->getRevisionDataTable()) {
+        $views_field['title'] = $this->t('Translation language');
+      }
+      if ($table == $this->entityType->getBaseTable() || $table == $this->entityType->getRevisionTable()) {
+        $views_field['title'] = $this->t('Original language');
+      }
+    }
+  }
+
+  /**
+   * Processes the views data for an entity reference field.
+   *
+   * @param string $table
+   *   The table the language field is added to.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition.
+   * @param array $views_field
+   *   The views field data.
+   * @param string $field_column_name
+   *   The field column being processed.
+   */
+  protected function processViewsDataForEntityReference($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
+
+    // @todo Should the actual field handler respect that this just renders a
+    //   number?
+    // @todo Create an optional entity field handler, that can render the
+    //   entity.
+    // @see https://www.drupal.org/node/2322949
+
+    if ($entity_type_id = $field_definition->getItemDefinition()->getSetting('target_type')) {
+      $entity_type = $this->entityManager->getDefinition($entity_type_id);
+      if ($entity_type instanceof ContentEntityType) {
+        $views_field['relationship'] = [
+          'base' => $this->getViewsTableForEntityType($entity_type),
+          'base field' => $entity_type->getKey('id'),
+          'label' => $entity_type->getLabel(),
+          'title' => $entity_type->getLabel(),
+          'id' => 'standard',
+        ];
+        $views_field['field']['id'] = 'field';
+        $views_field['argument']['id'] = 'numeric';
+        $views_field['filter']['id'] = 'numeric';
+        $views_field['sort']['id'] = 'standard';
+      }
+      else {
+        $views_field['field']['id'] = 'field';
+        $views_field['argument']['id'] = 'string';
+        $views_field['filter']['id'] = 'string';
+        $views_field['sort']['id'] = 'standard';
+      }
+    }
+
+    if ($field_definition->getName() == $this->entityType->getKey('bundle')) {
+      $views_field['filter']['id'] = 'bundle';
+    }
+  }
+
+  /**
+   * Processes the views data for a text field with formatting.
+   *
+   * @param string $table
+   *   The table the field is added to.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition.
+   * @param array $views_field
+   *   The views field data.
+   * @param string $field_column_name
+   *   The field column being processed.
+   */
+  protected function processViewsDataForTextLong($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
+    // Connect the text field to its formatter.
+    if ($field_column_name == 'value') {
+      $views_field['field']['format'] = $field_definition->getName() . '__format';
+      $views_field['field']['id'] = 'field';
+    }
+  }
+
+  /**
+   * Processes the views data for a UUID field.
+   *
+   * @param string $table
+   *   The table the field is added to.
+   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+   *   The field definition.
+   * @param array $views_field
+   *   The views field data.
+   * @param string $field_column_name
+   *   The field column being processed.
+   */
+  protected function processViewsDataForUuid($table, FieldDefinitionInterface $field_definition, array &$views_field, $field_column_name) {
+    // It does not make sense for UUID fields to be click sortable.
+    $views_field['field']['click sortable'] = FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getViewsTableForEntityType(EntityTypeInterface $entity_type) {
+    return $entity_type->getDataTable() ?: $entity_type->getBaseTable();
+  }
+
+}